import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.GraphicsConfiguration;
import com.sun.j3d.utils.applet.MainFrame; 
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.behaviors.mouse.*;
import javax.media.j3d.*;
import javax.vecmath.*;
 
import java.awt.event.*;
import java.util.Enumeration;
 
//   MouseBehaviorApp renders a single, interactively rotatable,
//   traslatable, and zoomable ColorCube object.
 
public class MouseBehaviorApp extends Applet {
 
    public BranchGroup createSceneGraph() {
	// Create the root of the branch graph
	BranchGroup objRoot = new BranchGroup();
 
        TransformGroup objTransform = new TransformGroup();
        objTransform.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
        objTransform.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
 
        objRoot.addChild(objTransform);
        objTransform.addChild(new ColorCube(0.4));
        //objRoot.addChild(new Axis());
 
        MouseRotate myMouseRotate = new MouseRotate();
        myMouseRotate.setTransformGroup(objTransform);
        myMouseRotate.setSchedulingBounds(new BoundingSphere());
        objRoot.addChild(myMouseRotate);
 
        MouseTranslate myMouseTranslate = new MouseTranslate();
        myMouseTranslate.setTransformGroup(objTransform);
        myMouseTranslate.setSchedulingBounds(new BoundingSphere());
        objRoot.addChild(myMouseTranslate);
 
        MouseWheelZoom myMouseZoom = new MouseWheelZoom();
        myMouseZoom.setTransformGroup(objTransform);
        myMouseZoom.setSchedulingBounds(new BoundingSphere());
        objRoot.addChild(myMouseZoom);
 
	// Let Java 3D perform optimizations on this scene graph.
        objRoot.compile();
 
	return objRoot;
    } // end of CreateSceneGraph method of MouseBehaviorApp
 
    // Create a simple scene and attach it to the virtual universe
 
    public MouseBehaviorApp() {
        setLayout(new BorderLayout());
        GraphicsConfiguration config =
           SimpleUniverse.getPreferredConfiguration();
 
        Canvas3D canvas3D = new Canvas3D(config);
        add("Center", canvas3D);
 
        BranchGroup scene = createSceneGraph();
 
        // SimpleUniverse is a Convenience Utility class
        SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
 
	// This will move the ViewPlatform back a bit so the
	// objects in the scene can be viewed.
        simpleU.getViewingPlatform().setNominalViewingTransform();
 
        simpleU.addBranchGraph(scene);
    } // end of MouseBehaviorApp (constructor)
    //  The following allows this to be run as an application
    //  as well as an applet
 
    public static void main(String[] args) {
        System.out.print("MouseBehaviorApp.java \n- a demonstration of using the mouse ");
        System.out.println("behavior utility classes to provide interaction in a Java 3D scene.");
        System.out.println("Hold the mouse button while moving the mouse to make the cube move.");
        System.out.println("     left mouse button      - rotate cube");
        System.out.println("     right mouse button     - translate cube");
        System.out.println("     Alt+left mouse button  - zoom cube");
        System.out.println("This is a simple example progam from The Java 3D API Tutorial.");
        System.out.println("The Java 3D Tutorial is available on the web at:");
        System.out.println("http://java.sun.com/products/java-media/3D/collateral");
        Frame frame = new MainFrame(new MouseBehaviorApp(), 256, 256);
    } // end of main (method of MouseBehaviorApp)
 
} // end of class MouseBehaviorApp